{
  "schema_version": "1.4.0",
  "id": "GHSA-6w62-3jvj-mfj6",
  "modified": "2025-03-20T19:56:42Z",
  "published": "2025-03-20T12:32:46Z",
  "aliases": [
    "CVE-2024-7765"
  ],
  "summary": "H2O Vulnerable to Denial of Service (DoS) via Large GZIP Parsing",
  "details": "In h2oai/h2o-3 version 3.46.0.2, a vulnerability exists where uploading and repeatedly parsing a large GZIP file can cause a denial of service. The server becomes unresponsive due to memory exhaustion and a large number of concurrent slow-running jobs. This issue arises from the improper handling of highly compressed data, leading to significant data amplification.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "h2o"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "3.32.1.2"
            },
            {
              "last_affected": "3.46.0.2"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "ai.h2o:h2o-core"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "3.32.1.2"
            },
            {
              "last_affected": "3.46.0.2"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7765"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/h2oai/h2o-3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/h2oai/h2o-3/blob/7d418fa19d3ab434f742818e37f891bef9102c97/h2o-core/src/main/java/water/parser/ParseDataset.java#L900"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/0e58b1a5-bdca-4e60-af92-09de9c76a9ff"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-409"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-20T19:56:42Z",
    "nvd_published_at": "2025-03-20T10:15:36Z"
  }
}